Discordance of physician clinical judgment vs. pneumonia severity index (PSI) score to admit patients with low risk community-acquired pneumonia: a prospective multicenter study

Context factors in clinical decision-making: a scoping review

BACKGROUND

Clinical decision support systems (CDSS) frequently exhibit insufficient contextual adaptation, diminishing user engagement. To enhance the sensitivity of CDSS to contextual conditions, it is crucial first to develop a comprehensive understanding of the context factors influencing the clinical decision-making process. Therefore, this study aims to systematically identify and provide an extensive overview of contextual factors affecting clinical decision-making from the literature, enabling their consideration in the future implementation of CDSS.

METHODS

A scoping review was conducted following the PRISMA-ScR guidelines to identify context factors in the clinical decision-making process. Searches were performed across nine databases: PubMed, APA PsycInfo, APA PsyArticles, PSYINDEX, CINAHL, Scopus, Embase, Web of Science, and LIVIVO. The search strategy focused on combined terms related to contextual factors and clinical decision-making. Included articles were original research articles written in English or German that involved empirical investigations related to clinical decision-making. The identified context factors were categorized using the card sorting method to ensure accurate classification.

RESULTS

The data synthesis included 84 publications, from which 946 context factors were extracted. These factors were assigned to six primary entities through card sorting: patient, physician, patient's family, institution, colleagues, and disease treatment. The majority of the identified context factors pertained to individual characteristics of the patient, such as health status and demographic attributes, as well as individual characteristics of the physician, including demographic data, skills, and knowledge.

CONCLUSION

This study provides a comprehensive overview of context factors in clinical decision-making previously investigated in the literature, highlighting the complexity and diversity of contextual influences on the decision-making process. By offering a detailed foundation of identified context factors, this study paves the way for future research to develop more effective, context-sensitive CDSS, enhancing personalized medicine and optimizing clinical outcomes with implications for practice and policy.

Emergency planned re-infusion therapy and hospitalisation for community-acquired pneumonia: a retrospective case-control study

Background

Community-acquired pneumonia (CAP) is a frequent reason for emergency department visits and leads to increased direct medical costs, particularly due to hospitalisation. This study aims to examine the differences between emergency planned re-infusion therapy and hospitalisation in patients with CAP.

Methods

This retrospective case-control study involved 1889 CAP patients treated at the Emergency Internal Medicine Department of Class A tertiary Hospital in China from 1 January 2020 to 31 December 2022. Patients were divided into groups receiving either emergency planned re-infusion therapy or hospitalisation. Independent sample t tests and χ2 tests were used to compare the clinical outcomes and economic impacts between the two groups across different pneumonia severity index (PSI) classifications.

Results

The study enrolled 1889 CAP patients. For PSI I-II patients, the improvement rates were 99.51% in the emergency planned re-infusion therapy group and 99.69% in the hospitalisation group, showing no statistically significant difference (P > 0.05). Similarly, no significant difference was observed for PSI III patients (84.16 vs. 89.82%). However, significant differences emerged for PSI IV patients, with improvement rates of 50% in the emergency planned re-infusion therapy group and 90.59% in the hospitalisation group (P < 0.001). Statistically significant differences were also noted in treatment duration (5.13 ± 1.65 days vs. 7.60 ± 3.93 days, P < 0.001) and total treatment costs (1921.57 Chinese Yuan (CNY) ± 923.16 vs. 9083.80 CNY ± 3583.55, P < 0.001) between the two groups.

Conclusions

Emergency planned re-infusion therapy for CAP is an effective and cost-efficient alternative that can reduce both treatment duration and costs, particularly for patients with PSI I-III. It is recommended that emergency physicians give priority to emergency re-infusion therapy for patients with PSI I-III. In addition, it is recommended that hospitals strengthen the classification and treatment training programmes for emergency department physicians to recognise the patients with PSI I-IV.

Registration

The hospital's ethics committee (XMCGIRB2024034-01).

The social experience of uncertainty: a qualitative analysis of emergency department care for suspected pneumonia for the design of decision support

BACKGROUND

This study sought to understand the process of clinical decision-making for suspected pneumonia by emergency departments (ED) providers in Veterans Affairs (VA) Medical Centers. The long-term goal of this work is to create clinical decision support tools to reduce unwarranted variation in diagnosis and treatment of suspected pneumonia.

METHODS

Semi-structured qualitative interviews were conducted with 16 ED clinicians from 9 VA facilities demonstrating variation in antibiotic and hospitalization decisions. Interviews of ED providers focused on understanding decision making for provider-selected pneumonia cases and providers' organizational contexts.

RESULTS

Thematic analysis identified four salient themes: i) ED decision-making for suspected pneumonia is a social process; ii) the "diagnosis drives treatment" paradigm is poorly suited to pneumonia decision-making in the ED; iii) The unpredictability of the ED requires deliberate and effortful information management by providers in CAP decision-making; and iv) the emotional stakes and high uncertainty of pneumonia care drive conservative decision making.

CONCLUSIONS

Ensuring CDS reflects the realities of clinical work as a socially organized process with high uncertainty may ultimately improve communication between ED and admitting providers, continuity of care and patient outcomes.

Usefulness of a predictive model to hospitalize patients with low-risk community-acquired pneumonia

INTRODUCTION

A high proportion of patients with low-risk community-acquired pneumonia (CAP) (classes I-III of the Pneumonia Severity Index) are hospitalized. The purpose of this study was to determine whether validated severity scales are used in clinical practice to make admission decisions, identify the variables that influence this decision, and evaluate the potential predictive value of these variables.

MATERIALS AND METHODS

A prospective, observational study of patients ≥ 18 years of age with a diagnosis of low-risk CAP hospitalized or referred from the Emergency Department to outpatient consultations. A multivariate logistic regression predictive model was built to predict the decision to hospitalize a patient.

RESULTS

The study population was composed of 1,208 patients (806 inpatients and 402 outpatients). The severity of CAP was estimated in 250 patients (20.7%). The factors that determined hospitalization were "abnormal findings in complementary studies" (643/806: 79.8%; due to respiratory failure in 443 patients) and "signs of clinical deterioration" [64/806 (7.9%): hypotension (16/64, 25%); hemoptoic expectoration (12/64, 18.8%); tachypnea (10/64, 15.6%)]. In total, ambulatory management was not contraindicated in 24.7% of hospitalized patients (199). The predictive model built to decide about hospitalization had a good power of discrimination (AUC 0.876; 95%CI: 0.855-0.897).

CONCLUSIONS

Scales are rarely used to estimate the severity of CAP at the emergency department. The decision to hospitalize or not a patient largely depends on the clinical experience of the physician. Our predictive model showed a good power to discriminate the patients who required hospitalization. Further studies are warranted to validate these results.

Severity scoring systems for pneumonia: current understanding and next steps

PURPOSE OF REVIEW

To describe the current understanding and clinical applicability of severity scoring systems in pneumonia management.

RECENT FINDINGS

Severity scores in community-acquired pneumonia are strong markers of mortality, but are not necessarily clinical decision-aid tools. The use of severity scores to support outpatient care in low-risk patients has moderate-to-strong evidence available in the literature, mainly for the pneumonia severity index, and must be applied together with clinical judgment. It is not clear that severity scores are helpful to guide empiric antibiotic treatment. The inclusion of biomarkers and performance status might improve the predictive performance of the well known severity scores in community-acquired pneumonia. We should improve our methods for score evaluation and move toward the development of decision-aid tools.

SUMMARY

The application of the available evidence favors the use of severity scoring systems to improve the delivery of care for pneumonia patients. The incorporation of new methodologies and the formulation of different questions other than mortality prediction might help the further development of severity scoring systems, and enhance their support to the clinical decision-making process for the pneumonia-management cascade.

Factor XI deficiency is not associated with an increased risk of pneumonia and pneumonia-related mortality

INTRODUCTION

Drugs targeting factor XI (FXI) shows promising results in reducing postoperative VTE. Recently, researchers have shown that FXI knockout mice had a worse outcome when infected with pathogens for pneumonia, raising concerns about the safety of these drugs.

AIM

To investigate the effect of FXI deficiency on the incidence of pneumonia and outcomes of pneumonia in humans.

METHODS

Using the computerized database of the largest healthcare provider in Israel, we identified adults who were tested for FXI activity between January of 2002 and December of 2014 (n = 10 193). Patients were followed up until December of 2016 for the occurrence of pneumonia and pneumonia requiring hospitalization as a proxy of severe pneumonia.

RESULTS

A total of 8958 (87.9%) had normal FXI activity, 804 (7.9%) had partial deficiency and 431 (4.2%) had severe deficiency; 722 individuals had pneumonia during 70 881 person-years of follow-up (incidence rate: 10.2 per 1000 person-years). Compared to those with normal FXI activity, the adjusted HR for pneumonia was 0.87 (95% CI, 0.67-1.14), and 0.95 (0.69-1.30) for those with partial and severe FXI deficiency, respectively. Overall, 256 individuals were hospitalized for pneumonia during 72 209 person-years of follow-up (incidence rate: 3.5 per 1000 person-years). The corresponding HR for severe pneumonia was 1.0 (0.70-1.48) and 0.86 (0.53-1.40) in those with partial and severe FXI deficiency, respectively. FXI deficiency was not significantly associated with 30-day and 90-day mortality among patients with pneumonia.

CONCLUSION

FXI deficiency was not associated with an increased risk of pneumonia, pneumonia severity or short-term mortality among patients with pneumonia.